Carrying mechanism por accounting machines



June 28, 1927. 1,634,068

J. BOYER CARRYING MECHANISM FOR ACCOUNTING MACHINES Filed dan. 13. 1926 3 Sheets-Sheet l INVENTOR j BY @0? ATTORNEY June 28', 1927.

1,634,068 J. BOYER VCARRYING MECHAIIIISM FOR vACCOAUNTING MACHINES Filed Jan. 13. 1921s 3 Sheets-Sheet 2 .A \`Q N INVENTOR www QL JW fw M Md MTORNEY June J. BOYER CARRYING MECHANISM FOR ACCOUNTING MACHINES Filed Jan, 1s. 192e 3 Sheets-Sheet 3 B5 INVENTOR W w A Y f ATTORNE Patented June 28, 1927.

JOSEPH BOYER, OF DETROIT, MICHIGAN, ASSIG CHINE COMPANY, A CORPORAT FICE.

NOR T `BURROU'GHS ADDING MA- ION 0F MICHIGAN.

CARRYING MECHANISM FOR ACCOUNTING MACHINES.

Application filed January 13, 1926. Serial No. 80,945.

The invcntion relates to a carrying mechanism for accounting machines.

lts general object is to provide an improved carrying mechanism for such machines.

A more particular object is to provide a carrying mechanism that is positive in operation; one that will not be moved to an undesired position by the jar or vibration of the machine; one that is made of. a minimum number of parts; one Athat may be conveniently manufactured; and one that is more simple, visible, and accessible for assembly adjustment and repair.

Other objects and advantages of the invention will hereinafter appear.

An embodiment. of the invention is illus-A trated in the drawin in which:

Fig. 1, is a side e evation of an accounting machine with the carrying mechanism mounted on it.

Fig. 2, is a cross-section of the carrying mechanism showing the parts in certain positions which will be later described.

Fig. 3, is plan view of the front portion of the carrying mechanism together with its frame, and the totalizer associated with it.

Fig. 4, is a sectional plan view on the line 4`4 of Fig. 2.

Fig. 5, is a perspective view of one series of moving parts of the carrying mechamsm. y v.

Fig. 6, is a side elevation and section showing the series of moving parts of the carrying mechanism in different position than in Fig. 5. i i

Fig. 7, is a view similar to Fig. 6, showing the parts 1n positlon for resetting or latching the carrying mechanism.

Fig. 8, is a vertical section on line 8-8 of Fi 2.

'The carrying mechanism is illustrated in connection with a Burroughs Moon-Hopkins accounting machine, but is to be understood that it is not confined to association with this machine and that it may be used with other makes and types of machines. 'Only the general features of the Burroughs Moon- Hopkins Machine will be described, reference being` made to Hopkins Patent No. 1,336,904 for details.

The accounting machine has a plurality of depressible keys 10, arranged to operate levers 11 pivoted upwardly on set pins 14 When one of 14 corresponding wardly. When the key is released, the carriage 15 automatically moves over one space and another row of pins 14 is positioned s0 as to be engaged by one of the vertical bars 13 when another ofthe keys 10 is depressed. In of a number this manner, one pin 1.4 in each of banks of such pinsis elevated corresponding to the keys that have been depressed the machine.

After the to put a given figure into proper numberv has been put -zl into the machine, an operating handle (not shown) is moved the carriage been vpushed.

16 and elevate a seriesof sponding to forward. This elevates 15, and the pins 14 that have upwardly strike movable stops those-,stops corref the pins 14 that have been premed upwardly. The. stops 16 .project into the path of aseries of each of which is provided actuator bars 20, with a lug 21 for engaging the stop 16 which maybe in its path. Movement ofthe operating lever also releases the arms 22 which," arefnormally biasedforward by springs 23.#These-a1tms are connected to the actuator bars and,

as they `move tor bars Wit ward until t respective st pat-h. They forward, they carry the actuah them. The vbars, move forheir projections 21l engageV the opsl 16 that may be in their thus .move forward different distances which are proportional to the values of the The front ends of the carry type bars 24, which hammers 25 of a need not be are returned respectively,

keys that have been depressed. actuator bars 20, are struck by the printing mechanism which dcribed. The actuator bars to their normal position 'by the operating handle.

`and a rear totalizer actuator bars. These by :trames V32 and 33 pivoted at 34 and 35 Vso that either totalizer may be moved into and out of engagem ent with the actuator bars.

When the actuator bars 20 are moved Afor- Ward, neithe r of the totalizers is in mesh pur Substantially the randa the marrying mechanism for eac 1s similar so that only one totalizer Withigits imechanism; -f

will be described.

toothed totalizer wheels which: are, beginning with the'iri' ht wheel whenthelni'ehine is viewed romt e frontjtheuni't'swheel; the tens wheel; the: hundreds i vheel etcf The number of wheelsdependsotif the s i'z' :of the machine". Tliere 'nniybtwtoi mort'sets oftotalzer wheelsgfon the "saineisha-fti-i By shifting the'whe'els lengtl'iwiseatiy setr'nay beA brought into line wt'hftlie' 5 actuator bars' to accnmlzteiii diierenttotali'zeisf" Whenion'ejbt thetotlizertheelshas beenrota f' through a'=cm"1jlete" revolution, its Arotfaif'af fmifstbe -re' eterea@ on; the'wheei ofnextl erorder. done,by4 -causingf the w 'er of 'next *fbi-giver order to be moved -forw'ard' -one 'step V*dr tooth' 1 and the present invention relates particularly "to carrying mechanism' foraccornplishing this T e'carryingmechanism'i'nelhdes aser'ies of moving' partsj foriA each -tot-aliz'er" wheel', the parts actuated Eby'fone *wheel serving 'to impart a one'stepmov'e'rnentl-,td thel'wheel of next higherorder". Each 'seriesofimoving parts' is 7smilarandl,in order'no't tocom'- plicabe the: description; fairly-foir js'eries' 'will be described." flihef'whole iseries 'of partsA i is mounted onE a- 'shftcarriedbytwof'side frame Each totaliz'er A'wheel j hastfon'e'i tooth' f 4() whichv is wider than the others --iantlfwhich forms a lateral projection*that strikes :the end of a pendant' pawl 41 pivot'ed'ont cross shaft 42 and having its movementinjone direction limited'by the" stop 43. Thefpawl'41 carries a projection or ear 44 tbatlcontacts the tail of a second pawl or latch: 45,' pi'voted at 46. The latch 45 has a hookedupper' end 47 which normally 'engagesover a' shoulder 48 on the lever arm '49,-'asillustrated in' Fig. 5. This lever arm'h'a's ai. downwardly-vpro'- jectin portion-50 to whic'liis connectedone end o a spring 51, lthe other end'being connected to the latch 45 belowfits'pi-voted c enter so asto tend to. turnthe" latch"coun'ter clockwise. This springx also 'serves to2 nor- `mally bias the lever-491ml ref-clockwise direction. It thus acts to maintain" the' end-'ot latch 45 hooltedfover :the'shoulder fof lever 49, as illustrated-in Fig. The-lever'ltfl is pivot-ed at 52 tothe outerfend of one of the arms 53 of a bell cran'lr carry'men'iber or @y and-*itsv lower end Ais provided with teeth which are adapiedto mesh with the teeth ot thejitotalizer 'wheel ofv next higher. order .than-fthe .wht-ei- Iwhich sets the arm into operation` All o "che carry arms 54 are held iagainstfoperationfby; a U-shaped haii 57 pivoted on the shaft Sii and exenrling under all the-ea-i'f'ry' arms. 1 'l`liis ha. arves as a means for restoring the carry arms to normal position after:they-have-etlected a carry.

The operation of the carrying mechanism is as follows: i i A Starting `:with the lparts -in their normal position as illustrated in Fig. 5, assume'that the totalizerwheel passes-beyond-its nine position. During this' movement the -toothor |projection40 -passes the end of the pawl 4landifasit passes the pawl, it pushes the pawloutward and the projection 44 moves the-latch Ain-:a clockwise direction which moves the lhooked`end`47 beyond the shoulder 48 of arm 49. This releases the arm 49 and the spring 5l turns it in a clockwise direction about pivot 542. Its movement is limited by the Contact of lower edge of the slot'55 with'theshaft 56. This slot is made wide enough so that the movement of the arm 49 'will be suiiieient to raise the shoulder 48 above the hooked end 47 of the latch 45 as shown in Fig. G. This prevents the latch 45 from again locking thelarm 49 when the :latch I novesbacli toward normal posi tion after the *projection 41 has passed pawl --Ater the lower edge of the slot in arm 49 has'eonta'cted with the shaft 56 the pull 'of spring 5l tends to swing the arm about the axis ot shaft 5G and this. in turn. tends to swing? the earry'arm 54 in a clockwise direction. Such movement is prevented. however, by the bail 57, which, at that time. is in Contact with the carry arms as illustrated in Fig. 2. The above movements take place while. the totalizer wheels are in mesh with the actuator hars and before the wheels have been moved upward into engagement with the Carr)1 arms. As the operating han'- dle of the machine reaches the end of its forward stroke. the totaliZe-r is raised out of engagement with. the actuator bars and into engagement with the carry7 arms except the units wheel which engages the fixed stop 5S. At the same. time the bail 57 is lowered and this permits the springs 5l to swing the arms 49 together with their released carry arms 54 vin a clockwisedirection. This movement is limited liv the Contact of the ends ot the carry arms with au adjustable stop shaft 6() which has a. eut awa-y portion and which may be adjusted by turning the shaft to vary the positionof the cut away portion. The stop lit shaft is positioned so that the movement of the carry arms is just enough to move the totalizcr wheels with which they engage one unit.

The carry arms and associated parts are returned to normalgposition by the bail 57 which is swung in a counterclockwise direction to the position illustrated in Fig. 7. The bail returns all the carry arms to normal position at the same time. This return movement is: sutlicient to permit the parts to move so as to carry the shoulders 48 of arms 49 slightly past the hooked ends 47 of the latches as illustrated in Fig. 7. This insures that the clearance will be great enough to permit the latches 45 to snap into position to latch the arms 49 against movement.

The mechanism for operating the bail 57 is illustrated in Fig. 2. It includes a disc mov-ed by the operating handle of the machine and having a cam portion 71, a concentric portion 72 and a depressed portion 73. 'lhe edge of the disc travels under a pass-by pawl 74 pivoted at 75 to the vertically movable member 76. This pawl is provided on one end `with a tail piece 77 engaging the stop 73 and on its other end with a roller 79 Y[for engagingthe edge of the disc. The vertically movable member 76 is connected to an arm 8() which .is integral with the bail 57 so that movements of member 76 are transmitted directly to the bail. A similar set 0f operating devices is provided for the rear totalizer bail, but as the parts are similar, the second set will not be described. It is partly illustrated in Fig. 2.

As the operating lever of the machine is pulled forward in Fig. 2, the disc 70 has no effect in operating the bail-because the pawl 74 rides loosely over the disc. During this movement of the handle the totalizer wheels are in raised position, that is, out of contact with the actuator bars' and in mesh with the carry arms. At the beginning of the return movement of the handle, the totalizer wheels are lowered out of mesh with the carry arms and into mesh with the. actuator bars. At about the saine time the cam portion 71 of the arm 70 moves the bail operating bar 76 upv-:ardly and the bail is moved in a counterclockwise direction to restore the carry arms and associated mechanism to a normal position. During this restoring operation the cani face 7l raises the arm 76 and moves the haii 57 slightly beyond normal position to insure that the shoulders 48 are carried below the hooked ends 47 of latches 45 after which the roller stud 79 drops off the high point ot' the cam tace 7l onto the concentric portion 72 which allows the parts to move to normal position. During the time that the roller stud 79 is traveling on the concentric surface 72. the totalizer wheels are being r0- tatcd h v `the actuator bars and if a carry taires piace. thc appropriate latches are tripped to occupy the position shown in the forward totalizer of. Fig. 2. After the actuator bars have been returned to their normal position, the further movement of the operating lever raises the totalizer` wheels into contact. with the carry arms and shortly thereafter the roller stud 79 drops into the lepressed portion 73 of the disc 70, thereby allowing the bail 57 to drop which, in turn, permits the carry arms to be actuated and carry the necessary amounts forward 0n the tolalizer wheels.

Among the advantages of the improved carrying mechanism is the fact that one spring, namely the spring 51 serves to operate three parts, the latch 45, the arm 4i), and thecarry arm 54. This and the relation ot' the dillerent elements reduces the number of parts required. Another' advantage is that the operation is positive and the parts cannot be displaced by jar or vibration of the machine. A still further advantage is that the movement of the parts is readily visible and they are easily accessible thereby making it easy to assemble, service andadjust the mechanism. An additional advantage is that the manufacturing processes are simplified, particularly in that the position of the carry arm does not depend upon the accuracy ofnumerous other parts. The relation of the teeth of the carry arm to the surface of the arm which contacts the bail 57 may be easily maintained in the manufacture of the carry arms.

It is to'be undeistood that the construction shown is for 'purposesA of illustration only and that variations may be made in it without departing from the -spirit and scope of theinvention as defined by the appended claims.' i n I I claim: r

^ 1. The combination in a carrying mechanism of-acarry arm, anfactuating lever for said arunir-lrxtch for said lever; and a single means for actuating both the lever and the latch.

2. The combination in a carrying mechanism of a carry arm. an actuating lever for said arm, a latch for said lever, and a spring for actuating both the lever and the latch.

3. The combination in a carrying mechanism of a carry arm, an actuating lever movable relative to the arm, alatch for said lever, and a single means for biasing the latch to hitched position, for moving the lever relative to the arm, and for moving the arm.

4. The' combination in a carrying mechanism of a carry arm, an actuating lever having a limited -movement relative to said arm. a latch for saidv lever, and a single spring for biasing the-latch to latched position. for moving 'the iever relative to the arm, and for moving the arm.

5. The combination in an accounting machine of totalizer wheels having tripping projections, pendant pawls operated by said projections, pivoted latches operated by said pawls. said latches having hooked ends` pivoted levers having shoulders for engagement under the hooked ends of the latches, and toothed carry arms to which the levers are pivoted, said carry arms having operative relation to said totalizcr wheels.

6. The combination in an accounting machine of totalizer wheels having tripping projections, pendant pawls operated by said projections, pivoted latches operated by said pawls, said latches having hooked ends, pivoted levers having shoulders for engagement under the hooked ends of the latches, toothed carry arms to which said levers are pivoted, and springs each of which operates a latch, a lever and a carry arm, said carry arms having operative relation to said totalizer wheels.

7. 'lhe combination in an accounting machine o totalizer wheels having tripping projections, pendant pawls operated by said projections, latches operated by said pawls` said latches having hooked ends, bell crank carry members pivoted near the juncture of their arms, one of the arms of the bell crank levers having teeth which are in operative relation to the totalizer Wheels, and levers pivoted to the other arms of the carry members, said levers having shoulders for en gagement under the hooked ends of the latches.

8. The combination in an accounting machine of totalizer wheels having tripping projections, pendant pawls operated by said projections, latches operated by said pawls. said latches havin' hooked ends, a shaft, bell crank carry members pivoted to said sha'ft ner the juncture of their arms, one arm of the bell crank levers having teeth which are in operative relation to the totalizer wheels, and levers pivoted to the other arms of the carry members, said levers having slots for receiving said shaft to permit slight movement of the levers relative to the shaft` said levers also having shoulders for engagement under the hooked ends of the latches.

9. The combination in an accounting machine of totalizer wheels havingY tripping projections, pendant pawls operated by said projections, latches operated by said pawls, sa'id latches having hooked ends, a shaft, bell crank carry members pivoted to said shaft near the juncture of their arms, one of the arms of the bell crank levers having teeth which are in operative relation to the totalizer wheels, and levers pivoted to the other arms of the carry members, said levers having slots for receiving the shaft which slots are of slightly great-cr width than the diameter ot the shaft to permit a limited movement. of the lever relative to the shaft, said levers also having shoulders for engagement under the hooked ends of the latches, and springs connected to arms on the levers and to the latches.

1U. The combination in an accounting machine ol totalizer wheels having tripping projections, toothed carry members in operative relation to` the totalize'r wheels, said carry members being biasedto move in one diiection, means for normally holding the carry members againsft movement in said direction, levers pivoted to the carry members and normally biased to move on their pivots, means for limiting the movement of the levers on their pivots on the carry mem` bers, latches'for normally preventing movemeut of the levers, and means operated by Vthe tripping projections on the totalizer wheels 'for momentarily moving the latches to release the levers to permit them to move a limited distance.

11. The combination in an accounting machine of totalizer wheels having tripping projections, toothed ear y members in operativc relation to the totalizer wheels, clearingr means for holding the carry members against movement, levers pivoted to the carry members, means for limiting the pivotal movement of the levers relative to the carry members, latches for normally preventing movement of the levers and carry arms, springs, each of which acts to normally move a latch, a lever and a carry arm of a set, and means operated by the tripping projections on a totaljzer wheel for momentarily moving the latches to release the levers to permit them to move a limited distance relative to the carry arms to unlatch the carry arms to permit them to move when released by the clearing means.

12. The combination in a carrying mechanism of a carry arm normally urged in a direction to effect a carry, a member connected to said arm and normally latched in position to prevent movement of the arm, means for unlatching said member, and means for yieldingly holding said member in its unl atched position.

13. The combination in a carrying mechanism of a carry arm, a member connected to said arm, a latch for preventing movement of said member, means for5urging said member toward unlatched position, and means for moving the latch to nnlatched position` said urging means being connected to said latch to hold it in latched position and acting to hold said member and latch in unlatched position after they have been nnlatched.

14. The combination in a carrying mechanism of a movable carry arm, a lever pivoted to said arm and having a limited move ment relative. thereto, means for m'ging said lever in a direction to move it relative to the llt) carry arm and to move the carry arm in a carrying direction, means` for .holding the carry arm against movement, latching meehanism for holding the lever against movement, tripping means actuated by a tripping projection on a counter wheel for releasing the latching mechanism to permit the lever for releasing to permit the carry arm full carry.

the carry arm holding means to move to effect a l" 1n testimony whereof, I have subscribed my name.

JOSEPH BOYER. 

